1966428496 has 40 divisors (see below), whose sum is σ = 3881001600. Its totient is φ = 965005440.

The previous prime is 1966428481. The next prime is 1966428551. The reversal of 1966428496 is 6948246691.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256365 + ... + 263923.

It is an arithmetic number, because the mean of its divisors is an integer number (97025040).

Almost surely, 2^1966428496 is an apocalyptic number.

1966428496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1966428496 is a deficient number, since it is larger than the sum of its proper divisors (1914573104).

1966428496 is a wasteful number, since it uses less digits than its factorization.

1966428496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7867 (or 7861 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 55.

The square root of 1966428496 is about 44344.4302703282. The cubic root of 1966428496 is about 1252.8316596657.

The spelling of 1966428496 in words is "one billion, nine hundred sixty-six million, four hundred twenty-eight thousand, four hundred ninety-six".